The league is in the process of looking into Sunday’s incident involving Serge Ibaka, a league spokesman said, and impending punishment for the Thunder forward could include a suspension for his hit on Los Angeles Clippers forward Blake Griffin.

The incident occurred with 1:52 remaining in the Thunder’s 108-104 win. Ibaka swung his arm down to Griffin’s body and ended up striking Griffin in the groin region. After video review, game officials ruled the act a Flagrant Foul 1, which is defined as “unnecessary contact committed by a player against an opponent.”

Ibaka was allowed to stay in the game because the play wasn’t ruled a Flagrant Foul 2, which is defined as “unnecessary and excessive contact committed by a player against an opponent” and an “unsportsmanlike act.”